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Quick Details

  • Material: Rubber and Carbon steel
  • Technics: Forged
  • Type: Coupling
  • Place of Origin: Henan, China (Mainland)
  • Model Number: GJQ(X)-SF
  • Brand Name: Liwei
  • Connection: Flange
  • Shape: Equal
  • Head Code: Round
  • color: black
  • DN: 32(1.25")-3000(120")
  • Lenghth: 165-550
  • Temperate: -30-120
  • Tensile strength: 13.6
  • certificate: ISO9001&ISO14001
  • Applicable medium: air,water,gas,weak acid,weak alkali

Packaging & Delivery

Packaging Details Unfumigation wooden case (Out package) and Plastic film and Textile membrane(inside package). We can make change as your request.
Delivery Time Shipped in 10 days after payment

Hight quality rubber rubber vibration isolator 

1. This product can greatly reduce pipeline system shock and noise. And can fundamentally resolve pipe joints 

displacement, axial stretch and nonconcentricity.
2. By using different materials, it can be made many kinds to cater for different medium and environment. Such as        acid resistance, alkali resistance, corrosion resistance, oil resistance and heat resistance etc.

3. The material is purerubber, sealing is very good. It is in light weight, very easy for installation . This product has

long life performance, but must be not contact with sharp metal instruments to avoid piercing the sphere. 

4. The product can be used for lift and transportation of raw water and sewage, transportation of water supply cooling cycle water thermal power ,condensate water of metallurgy industry and chemical industry,


The material of rubber vibration isolator





Inner  rubber



Outer  rubber



Framework  layer

Polyester  cord  fabric


Reinforcing  bar

Polyester  cord  fabric





Reinforcing  ring

Steel  wire  rope


rubber vibration isolatortechnical data form.


We products are base on GB,BS,ANSI,PG

Notes: if other standard requirement or special flange need particularly customer made , please provide written drawing , standard , data , we can make customer-made for you .



Design  picture of rubber vibration isolator.



rubber vibration isolator Displacement Diagram


 Appreciate the details of rubber vibration isolator


Hight quality rubber vibration isolator Protective Device

The flexible rubber joint buried protective device developed by our company is designed with enough space around and has no influence on rubber joints displacement performance and can separate rubber joint from exterior earth layers and keep pipes freely moving at device ends without resistance. After installing pipes lines, the backfilled ground will be leveled off as usual, on which, vehicles can run well, heavy materials are placed or equipment be installed.

 Special attention: please provide buried depth in order so that we can design reasonable protective device for you. Generally the device can be used for over 30 years if anti-erosion on the device surface is well done.   


we product have been use in many named factories and this one is Gangan power plant.



The foreign client Mr. king come to visit in 2009.


Our factory section


Company Information


        Zhengzhou Liwei Pipeline Equipment Co., ltd. (the former Zhengzhou Liwei Rubber Products Co., Ltd.) located at Shangjie District. Zhengzhou city is a manufacturer specializing in processing various steam, water, windpipe expansion and compensation joints, and a main base for producing rubber, metal and non-metallic pipe joints, It is also the appointed enterprise by the former chemical industry ministry, national construction ministry and general petrol chemical company member unit China Water Supply Association and power Equipment Network Union, and joints production unit recommended by China Water Association and National Metallurgy Ministry.

        Our Liwei brand flexible rubber joints have various heavy calibers, type and high quality in the county, The products series have won four patents and our company is named “Quality and Credit Unit” by Henan Province, Our product have become the first choices for national power design ,municipality and metallurgy units.

         At present, our product include four serial flexible rubber jointsthree types, tens of standard and common specification, eight series of metal pipe loosing compensation joints and fourteen standard specifications and types, eleven types of standard and common specification products for serial wind pipe non-metal compensatorsOur annual comprehensive production capacity can reach over forty thousand sets and we also process various pipe joint matching flat welding flanges (steel international/non-international standard). Our products have been sold in over thirty cities and autonomous regions, With China’s entry to the WTO; our products have been exported to foreign countries as Italy. Spain, Pakistan. Singapore and East European countries, etc, and the products have been become public famous brand products for design units and clients.

         Our company has been equipped with rich technical strength, excellent design and complete design and complete products test measures. We also own a set of strict management system and high-quality technicians, In2004; we have gained quality management and environment management authentication.

          Insisting on the rennet “Development Through Technology, Making More Friends, Creating Green Environment and Responsible for Future”, the company has been devoting itself to creating top products and well serving all clients around the world, Liwei brand products will be a red line between we and the clients for ever.


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